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HiDeck18 Overlay Board - 18mmx1200mmx600mm

From £22.99
Now £22.99
in stock, ready to be shipped
HiDeck18 Overlay Board - 18mmx1200mmx600mm
From £22.99
Now £22.99

Need expert advice?

Need help or product advice? Call 01799 524730

For delivery on Thursday

When ordered before 4pm (On weekdays)
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Discover the exceptional performance of Cellecta's HiDeck18 Overlay Board, a versatile solution designed to meet a wide range of flooring applications. With its suitability for underfloor heating and sound applications, tongue and groove edge detail, and high impact resistance, this product is the perfect choice for enhancing your flooring projects.

The HiDeck18 Overlay Board is engineered to optimize the efficiency of underfloor heating systems. Its low thermal resistance and rapid heat transfer characteristics ensure minimal energy wastage and even heat distribution across the entire floor, creating a comfortable and energy-efficient environment.

Key Features of HiDeck18 Overlay Board:

  • Low Thermal Resistance: With a thermal resistance of only 0.045/m2/kW, HiDeck18 minimizes energy loss, reducing heating costs and maximizing the effectiveness of your underfloor heating system.
  • High Thermal Conductivity: The high thermal conductivity of 0.40W/mK ensures efficient heat transfer, enabling the heat to spread evenly throughout the floor, providing consistent warmth in every corner of the room.
  • Low Thermal Expansion: HiDeck18 is designed to maintain its structural integrity with minimal expansion, ensuring long-lasting performance and preventing issues associated with thermal expansion.
  • Slim Profile: With a thickness of only 18mm, HiDeck18 offers a low-profile solution, minimizing floor height increase and providing flexibility in various installation scenarios.
  • Water Resistant: Unlike chipboard, HiDeck18 does not contract or expand significantly when exposed to water, ensuring its stability and durability in moisture-prone environments.
  • High Impact Resistance: The HiDeck18 Overlay Board is engineered to withstand heavy use and resist impact, providing a robust and long-lasting flooring solution.
  • Tongue and Groove Edge Detail: The convenient tongue and groove edge detail facilitates quick and hassle-free installation, eliminating the need for screws.
  • Compatible with Ceramic Tiles: HiDeck18 readily accepts ceramic tiles, making it suitable for a variety of flooring designs and applications.

Elevate your flooring projects with the HiDeck18 Overlay Board. Its exceptional thermal performance, impact resistance, and ease of installation make it the ideal choice for underfloor heating systems and a wide range of applications. Experience energy efficiency, durability, and design flexibility with HiDeck18 Overlay Board.

Thickness 18mm
Dimensions 600mm x 1200mm
Weight per board 15.55kg
Weight per m2 21.60
Edge profile Tongue and Groove
Thermal resistance 0.045m2/kW
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  • £22.99
    Total price

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    Our product experts are here to assist with any enquiry you might have.

    Our customer support is available Monday to Friday 7am-6pm.

    Call us on 01799 524730

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    Free delivery on all orders

    At Ambient Underfloor Heating, we strive to make every step of your order as easy and convenient as possible, from finding the right underfloor heating setup to best suit you to taking delivery of your system the very next day.

    We're proud to offer a range of delivery options to suit you, including free delivery on all orders over £19.99 or next working day delivery for a fixed price of £4.99.

    • 2-3 working days delivery, order over £19.99 - FREE (£4.99 if under £19.99)
    • Next working day - £4.99 (Order before 4pm Monday - Friday)
    • Next working day before 10.30am - £14.99 (Order before 4pm Monday - Friday)
    • Saturday delivery - £29.99 (Order before 4pm Friday)
    30 days returns policy

    At Ambient Underfloor Heating, our customers have 30 days to upgrade, replace or refund their orders.


    At Ambient Underfloor Heating, we want to ensure you are happy with every purchase you make. If you have any issues with your chosen product, whether damaged, faulty or simply an unwanted item, you can simply return what you bought for a refund.


    We take great care in the delivery of all of our products, however, in the event of your delivery arriving damaged or if you notice a manufacturing fault of any kind within 48 hours of delivery, you're within your rights to a replacement.


    Within 14 days of purchasing from us, you are eligible to upgrade if you deem you want something a little better. Simply send it back to us brand new and we'll happily assist you with an upgrade to your order.

    Lifetime warranty

    At Ambient Underfloor Heating, we are committed to providing our customers with high-quality products and outstanding customer service. That's why we offer a comprehensive warranty on all of our underfloor heating products, with a lifetime warranty for our signature kits.

    Our warranties are designed to give you peace of mind and ensure that your underfloor heating system operates reliably for years to come.

    Highly rated by our customers
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